Everything can't be true.

from Unknown Source by Aristotle nonfiction ~1 min read

From [1] The often ridiculed consequence of these opinions is that they destroy themselves. For by asserting that all is true we assert the truth of the contrary assertion and consequently the falsity of our own thesis (for the contrary assertion does not admit that it can be true). And if one says that all is false, that assertion is itself false. If we declare that solely the assertion opposed to ours is false or else that solely ours is not false, we are nevertheless forced to admit an infinite number of true or false judgments. For the one who expresses a true assertion proclaims simultaneously that it is true, and so on ad infinitum,"[2]

  1. This quote is actually taken from the Myth of Sisyphus —Camus quotes Aristotle and attributes this to him, but I cannot find the primary source. ↩︎

  2. My summation of "everything can't be true" can be only held to be true if the world is a static foundation —which it is not. Everything cannot be true in a single moment, but since time is always passing, since the world is always in movement, then everything can be true —only they happen to be true at different moments. ↩︎

—Aristotle, Unknown Source, p. -1